The Bronx

Cops on Sunday released this photo, as well as video footage, of a man they believe stabbed a teenage girl to death in Fordham Manor.

Jasmine Canton, 19, was stabbed once in the chest in her apartment on Creston Avenue at around 9:30 a.m. Saturday, according to police.

She died at the scene.

No arrests had been made as of Sunday night, but images from surveillance cameras show a man wiping his brow as he steps onto a curb and follows a young woman.

The man, believed to be in his 20s, was wearing a black North Face fleece jacket, black pants and a shirt with black stripes.

Cops are looking for the assassins who gunned down a 22-year-old man in the back of a U-Haul van in Eastchester.

Jahbar Campbell, of Queens, was inside the cargo area of the vehicle, near the Boston Secor Houses on Reeds Mill Lane, between Steenwick Avenue and Bivona Street, at around 11:35 p.m. Saturday when at least two assailants walked up and opened fire, police said.

The van’s driver hit the gas, crashed about a block away and ran off, cops said.

Campbell’s body was riddled with bullets police said.

He had several sealed arrests and one unsealed arrest for grand larceny from 2012, sources said.

Manhattan

A man disrupted subway service Sunday by walking along the tracks near the Manhattan Bridge in Chinatown, police said.

John Muller, 23, of East Second Street in Manhattan, wandered onto the tracks at around 1 a.m., according to police.

He was charged with trespassing.

Brooklyn

What a way to hit bottom.

A coked-up man became so paranoid Sunday that he brought his drugs to a hospital emergency room for testing, triggering an evacuation, according to police.

The drugs were in bags, but the presence of the “suspicious white powder” shut down part of Lutheran Medical Center in Sunset Park as first responders evacuated the area and diverted ambulances for about 45 minutes, beginning at around 1 a.m., officials said.

When 31-year-old Victor Alvarez’s bag of mysterious powder tested positive for cocaine, he was promptly arrested and charged with drug possession, cops said.

“He was high, so high, he didn’t know what it was,” said one law-enforcement source.

Queens

Authorities are trying to determine the cause of death of a man in a Flushing bar.

A 911 caller reported that Jimmy Yu, 49, appeared to be unconscious inside the CEO Sports Lounge on College Point Boulevard at around 11:20 p.m. Saturday, cops said.

He was pronounced dead at the scene.

There were no signs of trauma or foul play, sources said, and police are awaiting the results of toxicology tests.

A man was killed crossing a street in Richmond Hill, cops said Sunday.